论文标题
Qubit阵列的早期Lieb-Robinson相关函数
The early-time Lieb-Robinson correlation function for qubit arrays
论文作者
论文摘要
Lieb-Robinson相关函数捕获了多体系统中量子相关的传播。我们计算相关函数的领先顺序的值，而不是其绑定的值，用于早期相互作用的量子机系统。将一般的分析结果与数值计算进行了比较，并将其应用于一个，两个和三个维度的常规量子晶格。 Lieb-Robinson速度和相关的大致指数前缘以大阵列的极限出现。
The Lieb-Robinson correlation function captures propagation of quantum correlations in a many-body system. We calculate the value of the leading order of the correlation function, not its bound, for a system of interacting qubits at early times. The general analytical result is compared to numerical calculations and is applied to regular qubit lattices in one, two, and three dimensions. The Lieb-Robinson velocity and the approximately exponential leading edge of correlations emerge in the limit of large arrays.
